What is gene expression, Biology

Assignment Help:

What is Gene Expression ?

Gene expression is the process by which a gene is activated to produce a certain protein. Cells are able to respond to changes in the environment in two ways: 1.) by controlling the production of enzyme molecules that cause expression of a gene; and 2.) by controlling the activities of enzymes that are already present through the use of feedback mechanisms.

The control mechanism for gene expression is very different in prokaryotic cells than in eukaryotes.
The way in which a specific gene expresses itself is of particular interest to scientists. Many diseases have been found to be genetically-based. Therefore, the ability to control the form and behavior of a cell or an organism would prove especially useful in the prevention and cure of disease.

One area that holds real promise in the near future is in the cloning of new tissues or organs to replace those that have become injured or diseased. Cells from the body can be used to produce clones because each cell contains a full complement of DNA. Cloning involves removal of a cell from an organism, and then providing that cell with all of the nutrients, gases, and physical conditions necessary for its growth, development, and reproduction.

The larger question is: since each and every cell has the same DNA information, what are the determining factors that cause a newly formed skin cell to form the specialized structures that enable it to perform the functions of skin, rather than, say, the types of protein structures that characterize muscle cells?

 


Related Discussions:- What is gene expression

What is slime molds in diversity of life, What is Slime Molds in diversity ...

What is Slime Molds in diversity of life? Acrasiomycota and Myxomycota are appropriately named slime molds. They are slimy! The other part of their name comes from the time whe

Explain the primary function of blood, Explain the primary function of bloo...

Explain the primary function of blood? The primary function of the blood to transport oxygen from the lungs to body tissues for interior respiration. The blood helps in maintai

#monocot and diocot seeds., can I know the difference between diocot and mo...

can I know the difference between diocot and monocot seeds in a plant

Illustrate omega taxonomy, Q. Illustrate Omega Taxonomy? After synthesi...

Q. Illustrate Omega Taxonomy? After synthesising a basic classification, the taxonomist can attempt to improve upon it. Therefore, the observed facts are interpreted in Omega t

What are the healing events around implants, Healing Events around Implants...

Healing Events around Implants Healing of an implant is compared with the processes in normal bone healing or bone regeneration and with stable osteosynthesis.

Echinoderms, What is the classification scheme for echinoderms?

What is the classification scheme for echinoderms?

How many of each type of core histone, How many of each type of core histon...

How many of each type of core histone would it take to wrap the entire human genome into nucleosomes? How has evolution solved the problem of producing such a large number of prote

Define requirements of calcium during pregnancy period, Define requirements...

Define requirements of Calcium during pregnancy period? The foetus retains about 25-30 g of calcium, over the course of gestation, most of which is deposited in the last trimes

Insulin and its functions, People with Type 1 DM produce no insulin. People...

People with Type 1 DM produce no insulin. People with Type 2 DM do not always produce enough insulin. Insulin is used medically to treat some forms of diabetes mellitus. Patients w

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd